The Siemens 3RT2016-1AU01 is a SIRIUS power contactor in frame size S00, designed for switching motor loads and resistive circuits in industrial control panels. It mounts on 35 mm DIN rail per DIN EN 60715 with screw and snap-on fastening, and the coil is 24 VDC with screw-type terminals. The 45 mm width and 73 mm depth fit standard panel layouts — the depth is the dimension that matters when you're routing wires behind a gland plate or closing a shallow enclosure.
Integration & Mounting
The mounting position allows +/-180° rotation on a vertical surface and +/-22.5° tilt forward/backward, which helps when you're squeezing it into a crowded sub-panel. Clearances: 10 mm upwards, 10 mm forwards, 10 mm downwards, 6 mm at the side. Wire range accepts 0.5 to 4 mm² solid or stranded, including 2x (0.5…1.5 mm²), 2x (0.75…2.5 mm²), and 2x 4 mm² — covers most control-circuit terminations without needing a ferrule.
Ratings & Duty
The auxiliary switch is built in. Switching frequency: AC-1 (resistive) up to 1,000 operations/hour, AC-2 and AC-3 (motor starting/running) up to 750 ops/hour, AC-4 (plugging/inching) up to 250 ops/hour. That AC-3 figure is the one that matters for most conveyor and pump duty — 750 cycles per hour is enough for frequent start-stop applications. Rated operational current at 24 V is 10 A; at 400 V it's 3 A. Mechanical life typical is 30 million operations. Operating temperature range -25 to +60 °C; storage -55 to +80 °C.